Answer:
The Milankovitch cycles in association with other natural factors explain how glaciers may advance and retreat over periods of d. ten thousand to one hundred thousand years.
Explanation:
The Milankovitch cycles -
This is the movement related to Earth's orbit around the Sun .
There are three cycles , Axial tilt , Eccentricity and precession .
According to this theory , these cycles together affect the amount of the solar heat that is incident towards the Earth's surface and the climatic pattern .
The Milankovitch cycle helps the advance and retreat of ice over the periods of 10,000 to 1000,000 years , but it does not explain the cause of Ice Age.
Answer: a. algal bloom
Explanation:
The availability of food in the systems can tell the types and numbers of organisms in the systems by checking which types of organisms eat the food available as well as the quantity available to see the number of organisms.
Temperature and dissolved oxygen levels also play a huge part in determining the feasibility of organisms staying in the system. The availability of nutrients goes hand in hand with the availability of food in determining the organisms present.
Algal bloom is not a factor in determining the types and numbers of organisms found in a system because the conditions that caused this bloom might not be suitable for other organisms as well.
Answer:
The Orpheus theory, which says that a planet-sized body once collided with Earth and that it sent some of the material into orbit, forming the moon.
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